Isn't this something we all want to see though? I mean development has to be done somewhere so we all can move forward, technology wise, right?

I would rather pay for (and use) banana boards, if they turn out to be superior, than build a wing sail, no doubt, but I'm glad there are some smart guys out there who will spend the time and money working on that stuff.

Somebody has to be first, right? Else we would all still be sailing Hobie 16's, not that there's anything wrong with that, but look at all the speed improvments since that boat came out. If the bananna boards turn out to be superior, would it cost all that much to buy (or build) a set? Or would the hulls need to be modified to accept the bend too? That might set you back a few bucks.

I don't see it as that big a threat, look at sail development, nobody was complaining when guys started building with mylar instead of dacron, even though mylar was lighter and held shape better, and it cost more, but now we are all using it. Would we want to go back to dacron mainsails?

Same goes for wing shaped masts, mid pole snuffers, T foil rudders, etc. so why not bananna boards?